Temperature dependence of the dynamics of the first image-potential state on Ag(111)

We acknowledge funding by the Deutsche Forschungsgemeinschaft through Grants No. GRK 790 and No. GU 495/2, the Ikerbasque Foundation, the University of the Basque Country (Project No. GV-UPV/EHU, Grant No. IT-366-07), and Ministerio de Ciencia e Inovacion (Grant No. FIS2010-19609-C02-00).